Basic Physics Questions and Answers
![A metal rod of length is well lagged with non conducting material to prevent losses due to radiation and its two ends are maintained at steady temperatures T and T2 with T1 T2 then in steady state the temperature T of section of a bar at distance x from the hot end varies with distance as 3 3 20 Two vessels X X having 2 4 TA X X](https://media.kunduz.com/media/sug-question-candidate/20210803051420542576-1388437.jpg?w=256)
Physics
Basic PhysicsA metal rod of length is well lagged with non conducting material to prevent losses due to radiation and its two ends are maintained at steady temperatures T and T2 with T1 T2 then in steady state the temperature T of section of a bar at distance x from the hot end varies with distance as 3 3 20 Two vessels X X having 2 4 TA X X
![SolveLancer Test An ideal gas undergoes a process in which pressure varies as P 5 V where V is the volume and n is a constant Specific heat capacity in this process is zero Find the value of n SolveLancer Test a y b y c 2y d 2y](https://media.kunduz.com/media/sug-question-candidate/20210629141027453545-2869725.jpg?w=256)
Physics
Basic PhysicsSolveLancer Test An ideal gas undergoes a process in which pressure varies as P 5 V where V is the volume and n is a constant Specific heat capacity in this process is zero Find the value of n SolveLancer Test a y b y c 2y d 2y
![40 The spool shown in figure is placed on rough horizontal surface and has inner radius r and outer radius R The angle 0 between the applied force and the horizontal can be varied The critical angle 0 for which the spool does not roll and remains stationary is given by A 0 cos r R B 0 cos 2r R C 0 cos R D 0 sin r R F](https://media.kunduz.com/media/sug-question-candidate/20210922175615003509-3607878.jpg?w=256)
Physics
Basic Physics40 The spool shown in figure is placed on rough horizontal surface and has inner radius r and outer radius R The angle 0 between the applied force and the horizontal can be varied The critical angle 0 for which the spool does not roll and remains stationary is given by A 0 cos r R B 0 cos 2r R C 0 cos R D 0 sin r R F
![Consider four conducting materials copper tungsten mercury and aluminium with resistivity Pc PT PM and PA respectively Then 1 PA PT Pc 2 PC PA PT 3 PA PM Pc](https://media.kunduz.com/media/sug-question-candidate/20210803051417061481-1229757.jpg?w=256)
Physics
Basic PhysicsConsider four conducting materials copper tungsten mercury and aluminium with resistivity Pc PT PM and PA respectively Then 1 PA PT Pc 2 PC PA PT 3 PA PM Pc
![1 A smooth sphere of mass 1 kg is moving with horizontal speed of 3 m s strikes perpendicularly with a vertical wall and bounces off the wall with horizontal speed of 2 m s What is the coefficient of restitution between sphere and wall 1 3 3 MIN IN 2 2 DIN 117 3 10 1 A Is to b 1 3](https://media.kunduz.com/media/sug-question-candidate/20210803050659675174-1388437.jpg?w=256)
Physics
Basic Physics1 A smooth sphere of mass 1 kg is moving with horizontal speed of 3 m s strikes perpendicularly with a vertical wall and bounces off the wall with horizontal speed of 2 m s What is the coefficient of restitution between sphere and wall 1 3 3 MIN IN 2 2 DIN 117 3 10 1 A Is to b 1 3
![A stone is thrown vertically upwards from cliff with velocity 5m s It strikes the pond near the base of cliff after 4s The height of cliff is Question Type Single Correct Type 1 2 3 4 6 m 60 m 40 m 100 m](https://media.kunduz.com/media/sug-question-candidate/20210803054530729657-3551907.jpg?w=256)
Physics
Basic PhysicsA stone is thrown vertically upwards from cliff with velocity 5m s It strikes the pond near the base of cliff after 4s The height of cliff is Question Type Single Correct Type 1 2 3 4 6 m 60 m 40 m 100 m
![2 A rod AB is supported by a cable BC as shown A vertically downward load of 100 KN is applied at B If the cable has a cross sectional area of 500 mm and it is made of A 36 steel determine the stress in the cable Also determine the vertical deflection of point 8 20 C A 14m B 50](https://media.kunduz.com/media/sug-question-candidate/20210922145732959384-3623444.jpg?w=256)
Physics
Basic Physics2 A rod AB is supported by a cable BC as shown A vertically downward load of 100 KN is applied at B If the cable has a cross sectional area of 500 mm and it is made of A 36 steel determine the stress in the cable Also determine the vertical deflection of point 8 20 C A 14m B 50
![If the block shown in figure is displaced slightly and released find the time period of oscillations of the block eeeeeeee ellele e Question Type Single Correct Type m 11 T 2 t 2 T 2 3 5m T K 3m K T 2 t](https://media.kunduz.com/media/sug-question-candidate/20210629142207969287-3371989.jpg?w=256)
Physics
Basic PhysicsIf the block shown in figure is displaced slightly and released find the time period of oscillations of the block eeeeeeee ellele e Question Type Single Correct Type m 11 T 2 t 2 T 2 3 5m T K 3m K T 2 t
![A car is moving towards a building with speed 10 m s At any instant the angle of elevation of the building is 30 after 5 sec the angle of elevation of the building becomes 45 then height of building is 50 A h B h 3 1 20 3 1 C h D h 20 3 1 50 30 1](https://media.kunduz.com/media/sug-question-candidate/20210629124245622526-3210326.jpg?w=256)
Physics
Basic PhysicsA car is moving towards a building with speed 10 m s At any instant the angle of elevation of the building is 30 after 5 sec the angle of elevation of the building becomes 45 then height of building is 50 A h B h 3 1 20 3 1 C h D h 20 3 1 50 30 1
![3 cos 3 4 4 cos 4 3 1 Find the magnitude of the unknown forces and Y if sum of all forces is zero 5 1 5 and 10 3 5 and 5 539 90 10 2 10 and 5 4 10 and 10](https://media.kunduz.com/media/sug-question-candidate/20210629135329925887-2662149.jpg?w=256)
Physics
Basic Physics3 cos 3 4 4 cos 4 3 1 Find the magnitude of the unknown forces and Y if sum of all forces is zero 5 1 5 and 10 3 5 and 5 539 90 10 2 10 and 5 4 10 and 10
![2 If a vector is rotated by any angle keeping its tail fixed then select correct option 1 Magnitude of vector must change 2 Direction of vector may change 3 Direction of vector must change 4 Magnitude of vector may change](https://media.kunduz.com/media/sug-question-candidate/20210629135815609391-2662149.jpg?w=256)
Physics
Basic Physics2 If a vector is rotated by any angle keeping its tail fixed then select correct option 1 Magnitude of vector must change 2 Direction of vector may change 3 Direction of vector must change 4 Magnitude of vector may change
![A current I Ioet is flowing in a circuit consisting of a parallel combination of resistance R and capacitance C The total charge over the entire pulse period is SAJ as the C Io B D WB JEE 2016 210 2 e ox](https://media.kunduz.com/media/sug-question-candidate/20210803054519530399-3499780.jpg?w=256)
Physics
Basic PhysicsA current I Ioet is flowing in a circuit consisting of a parallel combination of resistance R and capacitance C The total charge over the entire pulse period is SAJ as the C Io B D WB JEE 2016 210 2 e ox
![1 A body accelerates uniformly from rest to a velocity of 1 ms 1 in 15 seconds The kinetic joule when time t LO 2 9 is equal to take mass of body equal to 1 kg 1 10 s 2 4 s 3 12 s 4 8 s The energy of the body will be](https://media.kunduz.com/media/sug-question-candidate/20210803050741440089-1388437.jpg?w=256)
Physics
Basic Physics1 A body accelerates uniformly from rest to a velocity of 1 ms 1 in 15 seconds The kinetic joule when time t LO 2 9 is equal to take mass of body equal to 1 kg 1 10 s 2 4 s 3 12 s 4 8 s The energy of the body will be
![A physical quantity y a b cd4 1 4 has four observables a b c and d The percentage error in a b c and d are 1 3 4 and 5 respectively The error in y will be 1 6 2 11 3 16 4 320](https://media.kunduz.com/media/sug-question-candidate/20210629141059163700-2305126.jpg?w=256)
Physics
Basic PhysicsA physical quantity y a b cd4 1 4 has four observables a b c and d The percentage error in a b c and d are 1 3 4 and 5 respectively The error in y will be 1 6 2 11 3 16 4 320
![A sphere is attached to an inextensible string of 6 length 0 5 m whose upper end is fixed to ceiling The sphere has mass of 0 2 kg and is made to describe horizontal circle of radius 0 3 m The speed of sphere is 1 1 5 m s 3 2 5 m s 2 0 6 m s 4 1 8 m s 3](https://media.kunduz.com/media/sug-question-candidate/20210803050357927037-1388437.jpg?w=256)
Physics
Basic PhysicsA sphere is attached to an inextensible string of 6 length 0 5 m whose upper end is fixed to ceiling The sphere has mass of 0 2 kg and is made to describe horizontal circle of radius 0 3 m The speed of sphere is 1 1 5 m s 3 2 5 m s 2 0 6 m s 4 1 8 m s 3
![V GM VR the escape velocity as Where G Gravitational constant R Radius M Mass Dimensional Formula of G M L T The equation is 1 Dimensionaly incorrect 2 Dimensionaly correct 3 Numerically correct tegram](https://media.kunduz.com/media/sug-question-candidate/20210629141158141464-2305126.jpg?w=256)
Physics
Basic PhysicsV GM VR the escape velocity as Where G Gravitational constant R Radius M Mass Dimensional Formula of G M L T The equation is 1 Dimensionaly incorrect 2 Dimensionaly correct 3 Numerically correct tegram
![A particle executes SHM with angular frequency w starting from its mean position at 0 Its velocity is 3bo when it is at a distance b from the mean position The time taken by the particle to move from b to the extreme position on the same side is 5T 60 TU 30 FIS](https://media.kunduz.com/media/sug-question-candidate/20210629142505084271-2069617.jpg?w=256)
Physics
Basic PhysicsA particle executes SHM with angular frequency w starting from its mean position at 0 Its velocity is 3bo when it is at a distance b from the mean position The time taken by the particle to move from b to the extreme position on the same side is 5T 60 TU 30 FIS
![2 The following forces act at a point i 20 kN towards the north ii 25 kN inclined at 30 towards the north west lii 30 kN inclined at 45 towards south west](https://media.kunduz.com/media/sug-question-candidate/20210803040203842231-3562059.jpg?w=256)
Physics
Basic Physics2 The following forces act at a point i 20 kN towards the north ii 25 kN inclined at 30 towards the north west lii 30 kN inclined at 45 towards south west
![A container whose bottom has round holes with diameter 0 1 mm is filled with water The maximum height in cm upto which water can be filled without leakage will be what Surface tension 75 x 10 N m and g 10 m s 1 20 cm 2 40 cm 3 30 cm 4 60 cm](https://media.kunduz.com/media/sug-question-candidate/20210629140308860511-3435079.jpg?w=256)
Physics
Basic PhysicsA container whose bottom has round holes with diameter 0 1 mm is filled with water The maximum height in cm upto which water can be filled without leakage will be what Surface tension 75 x 10 N m and g 10 m s 1 20 cm 2 40 cm 3 30 cm 4 60 cm
![7 A charge q is to be distributed on two conducting spheres What should be the value of the charges on the spheres so that the repulsive force between them is maximum when they are placed at a fixed distance from each other in air 1 2 and 9 2 9 3 and 29 3 3 2 9 1 and 4 05 and 3q 4 4q 5 C](https://media.kunduz.com/media/sug-question-candidate/20210629131419333604-2145208.jpg?w=256)
Physics
Basic Physics7 A charge q is to be distributed on two conducting spheres What should be the value of the charges on the spheres so that the repulsive force between them is maximum when they are placed at a fixed distance from each other in air 1 2 and 9 2 9 3 and 29 3 3 2 9 1 and 4 05 and 3q 4 4q 5 C
![A position vector of magnitude 10 units makes an angle 53 with a position vector B of magnitude 6 units The magnitude of position vector AB and the angle it makes with is 1 8 units 180 37 2 10 units 37 3 10 units 53 4 8 units 53](https://media.kunduz.com/media/sug-question-candidate/20210629135246578019-2662149.jpg?w=256)
Physics
Basic PhysicsA position vector of magnitude 10 units makes an angle 53 with a position vector B of magnitude 6 units The magnitude of position vector AB and the angle it makes with is 1 8 units 180 37 2 10 units 37 3 10 units 53 4 8 units 53
![A ring of wire with radius 2 00 cm and resistance 0 600 Q is located in a uniform magnetic field B that is perpendicular to the plane of the loop At t 0 the magnetic field has magnitude Bo 5 00 T The magnetic field then decreases according to the equation B t Boet where T 0 500 s What is the induced current I when t 2 00 s 9626 m](https://media.kunduz.com/media/sug-question-candidate/20210803003605196491-3154027.jpg?w=256)
Physics
Basic PhysicsA ring of wire with radius 2 00 cm and resistance 0 600 Q is located in a uniform magnetic field B that is perpendicular to the plane of the loop At t 0 the magnetic field has magnitude Bo 5 00 T The magnetic field then decreases according to the equation B t Boet where T 0 500 s What is the induced current I when t 2 00 s 9626 m
![21 There are two vectors A and B if B KA where k is any positive constant number then select correct option K 0 1 Direction of both A and B will be different 2 Magnitude of B must be greater than A 3 Both vectors are orthogonal to each other 4 Magnitude of B may be greater than A 2](https://media.kunduz.com/media/sug-question-candidate/20210629135800429589-2662149.jpg?w=256)
Physics
Basic Physics21 There are two vectors A and B if B KA where k is any positive constant number then select correct option K 0 1 Direction of both A and B will be different 2 Magnitude of B must be greater than A 3 Both vectors are orthogonal to each other 4 Magnitude of B may be greater than A 2
![Q A simple pendulum oscillates in air with time period T and amplitude A As the time passes UP CPMT UP CPMT 2004 A T and A both decrease B Report Error T increases and A is constant](https://media.kunduz.com/media/sug-question-candidate/20210803044711452427-1890936.jpg?w=256)
Physics
Basic PhysicsQ A simple pendulum oscillates in air with time period T and amplitude A As the time passes UP CPMT UP CPMT 2004 A T and A both decrease B Report Error T increases and A is constant
![for A ray of light is incident at an angle of incidence i on one face of a prism of angle A assumed to be small and emerges normally from the opposite face It the refractive index of the prism is the angle of incidence i is nearly equal to AIPMT Prelims 2012 1 ARAG 2 244 3 A](https://media.kunduz.com/media/sug-question-candidate/20210803001144740695-2000723.jpg?w=256)
Physics
Basic Physicsfor A ray of light is incident at an angle of incidence i on one face of a prism of angle A assumed to be small and emerges normally from the opposite face It the refractive index of the prism is the angle of incidence i is nearly equal to AIPMT Prelims 2012 1 ARAG 2 244 3 A
![forces act at a point O as shown in the figure and if O is in equilibrium then the value of 9 P are 1 15 10 2N 2 450 10 N 3 75 10 2N 4 90 20 N P 10N 0 45 10 N 10 2 N](https://media.kunduz.com/media/sug-question-candidate/20210629121031851702-3531907.jpg?w=256)
Physics
Basic Physicsforces act at a point O as shown in the figure and if O is in equilibrium then the value of 9 P are 1 15 10 2N 2 450 10 N 3 75 10 2N 4 90 20 N P 10N 0 45 10 N 10 2 N
![A 2 B 1 2 C 2 D 5 24 If A 21 3 k and B 3 1 4k then projection of A on B will be 3 A B C There are two vectors 25 D 3 and B 24 FS 0 A 2 A 21 31 B 4 A dxf you ar B 1 2 26 B C 2 D 5 B 31 1 4 d A r D](https://media.kunduz.com/media/sug-question-candidate/20210629112800909918-2662149.jpg?w=256)
Physics
Basic PhysicsA 2 B 1 2 C 2 D 5 24 If A 21 3 k and B 3 1 4k then projection of A on B will be 3 A B C There are two vectors 25 D 3 and B 24 FS 0 A 2 A 21 31 B 4 A dxf you ar B 1 2 26 B C 2 D 5 B 31 1 4 d A r D
![Imagine a change in the famous story of the hare and the tortoise In this new story when the hare wakes up he finds the tortoise xo 10 0 km ahead moving with a constant velocity The hare not ready to give up starts running again with a constant velocity In its effort to win it overcomes this distance in time t but during this time the tortoise crawls further a distance x the hare overcomes x in time t2 but the tortoise in this time crawls further a distance x2 This situation continues repeatedly A monkey who was the referee measures only distance x3 0 08 m and time t7 1 28 x 107 s Assuming the hare and the tortoise as particles find their speeds How long after the hare og up will it wit](https://media.kunduz.com/media/sug-question-candidate/20210803005602902328-2286841.jpg?w=256)
Physics
Basic PhysicsImagine a change in the famous story of the hare and the tortoise In this new story when the hare wakes up he finds the tortoise xo 10 0 km ahead moving with a constant velocity The hare not ready to give up starts running again with a constant velocity In its effort to win it overcomes this distance in time t but during this time the tortoise crawls further a distance x the hare overcomes x in time t2 but the tortoise in this time crawls further a distance x2 This situation continues repeatedly A monkey who was the referee measures only distance x3 0 08 m and time t7 1 28 x 107 s Assuming the hare and the tortoise as particles find their speeds How long after the hare og up will it wit
![Dave Kunst is the first person verified to have completely circled the entire earth on foot in 4 years Les ssume he traveled in a perfect circle around the earth and the center of his circle is same as the cente he earth If he traveled through a tunnel through the center of the earth penetrating to other side of ea at the same average speed how much time would he have taken a 4 55 years C 3 55 years b 2 years d 1 27 years](https://media.kunduz.com/media/sug-question-candidate/20210629135952773589-3514195.jpg?w=256)
Physics
Basic PhysicsDave Kunst is the first person verified to have completely circled the entire earth on foot in 4 years Les ssume he traveled in a perfect circle around the earth and the center of his circle is same as the cente he earth If he traveled through a tunnel through the center of the earth penetrating to other side of ea at the same average speed how much time would he have taken a 4 55 years C 3 55 years b 2 years d 1 27 years
![on 1 Nature of substance 2 Temperature of the substance 3 Mass of the substance 4 Both 1 and 2 An aluminium sphere of mass 47 gm is at 100 C It is then transferred to 140 gm copper calorimeter containing 250 gm of water at 20 C In steady state the temperature of water rises by 3 C What is specific heat of aluminium if that of copper is 386 J kg K NCERT Pg 286 1 911 J kg 1 K 1 2 516 J kg K 1 3 312 J kg K 1 4 612 J kg K 1 10 Two ideal gas thermometers A and B use oxygen and hydrogen gas respectively Following observation were made Temperature 9 NCERT Triple point of water heat of a substance depends NCERT Pg 284 Normal melting point of sulphur Pressure thermometer A 1 25 x 105 Pa 1 797 x 105 Pa Pressure thermometer B 2 x 10 Pa 2 87 x 10 Pa What is absolute temperature of normal melting point of sulphur as read by A and B respectively 1 392 69 K 391 98 K 2 362 3 K 378 6 K 3 378 4 K 375 4 K 4 387 5 K 386 3 K 11 Boiling water is converti atmospheric pressure Th now being utilised to ch liquid state to vapour s condition specific heat of 1 Less than zero 2 Zero 3 Slightly greater than ze 4 Infinite 12 Certain amount of heat is c copper to increase its temp If same amount of heat is water then rise in its Specific heat of copper water 4200 J kg K 1 4 C 3 6 C 2 4 13 When 150 gm of ice at C 300 gm of water at 50 C in resulting temperature is L 3 34 x 105 J kg Sw 1 2 7 C](https://media.kunduz.com/media/sug-question-candidate/20210802212247114688-3097791.jpg?w=256)
Physics
Basic Physicson 1 Nature of substance 2 Temperature of the substance 3 Mass of the substance 4 Both 1 and 2 An aluminium sphere of mass 47 gm is at 100 C It is then transferred to 140 gm copper calorimeter containing 250 gm of water at 20 C In steady state the temperature of water rises by 3 C What is specific heat of aluminium if that of copper is 386 J kg K NCERT Pg 286 1 911 J kg 1 K 1 2 516 J kg K 1 3 312 J kg K 1 4 612 J kg K 1 10 Two ideal gas thermometers A and B use oxygen and hydrogen gas respectively Following observation were made Temperature 9 NCERT Triple point of water heat of a substance depends NCERT Pg 284 Normal melting point of sulphur Pressure thermometer A 1 25 x 105 Pa 1 797 x 105 Pa Pressure thermometer B 2 x 10 Pa 2 87 x 10 Pa What is absolute temperature of normal melting point of sulphur as read by A and B respectively 1 392 69 K 391 98 K 2 362 3 K 378 6 K 3 378 4 K 375 4 K 4 387 5 K 386 3 K 11 Boiling water is converti atmospheric pressure Th now being utilised to ch liquid state to vapour s condition specific heat of 1 Less than zero 2 Zero 3 Slightly greater than ze 4 Infinite 12 Certain amount of heat is c copper to increase its temp If same amount of heat is water then rise in its Specific heat of copper water 4200 J kg K 1 4 C 3 6 C 2 4 13 When 150 gm of ice at C 300 gm of water at 50 C in resulting temperature is L 3 34 x 105 J kg Sw 1 2 7 C
![8 An inflated rubber balloon contains one mole of an ideal gas has a pressure p volume Vand temperature T If the temperature rises to 1 1 T and the volume is increaset to 1 05 V the final pressure will be a 1 1 p b p c less than p d between p and 1 1](https://media.kunduz.com/media/sug-question-candidate/20210802234930300341-1461613.jpg?w=256)
Physics
Basic Physics8 An inflated rubber balloon contains one mole of an ideal gas has a pressure p volume Vand temperature T If the temperature rises to 1 1 T and the volume is increaset to 1 05 V the final pressure will be a 1 1 p b p c less than p d between p and 1 1
![Four identical mirrors are made to stand vertically to form a square arrangement as shown in top view A ray starts from the midpoint M of mirror AD and after two reflections reaches corn D Then angle 0 must be A B C D tan 0 75 cot 0 75 sin 0 75 cos 0 75](https://media.kunduz.com/media/sug-question-candidate/20210803021435755043-3491464.jpg?w=256)
Physics
Basic PhysicsFour identical mirrors are made to stand vertically to form a square arrangement as shown in top view A ray starts from the midpoint M of mirror AD and after two reflections reaches corn D Then angle 0 must be A B C D tan 0 75 cot 0 75 sin 0 75 cos 0 75
![The length of a cylinder is measured with a meter rod having least count 0 1 cm Its diameter is measured with vernier calipers having least count 0 01 cm Given that length is 5 0 cm and radius is 2 0 cm The percentage error in the calculated value of the volume will be 1 2 201](https://media.kunduz.com/media/sug-question-candidate/20210802201432040731-1461613.jpg?w=256)
Physics
Basic PhysicsThe length of a cylinder is measured with a meter rod having least count 0 1 cm Its diameter is measured with vernier calipers having least count 0 01 cm Given that length is 5 0 cm and radius is 2 0 cm The percentage error in the calculated value of the volume will be 1 2 201
![A solid sphere of radius R 0 2 m and of negligible mass is swimming in the water tank of base surface area A 0 5 m The depth of the water in the tank is h 1 m Determine the work in joules needed to push the sphere down the bottom of tank Assume that no water flows out of the tank The density of water is p 1000 kg m and g 9 81 m s Your Answer Unattempted Rate this questic](https://media.kunduz.com/media/sug-question-candidate/20210802175643136823-3553639.jpg?w=256)
Physics
Basic PhysicsA solid sphere of radius R 0 2 m and of negligible mass is swimming in the water tank of base surface area A 0 5 m The depth of the water in the tank is h 1 m Determine the work in joules needed to push the sphere down the bottom of tank Assume that no water flows out of the tank The density of water is p 1000 kg m and g 9 81 m s Your Answer Unattempted Rate this questic
![The mean time period of second s pendulum is 2 00s and mean absolute error in the time period is 0 05s To express maximum estimate of error the time period should be written as 2 00 0 01 s 2 00 0 025 s 2 00 0 05 s CORRECT ANSWER](https://media.kunduz.com/media/sug-question-candidate/20210802201411249641-1461613.jpg?w=256)
Physics
Basic PhysicsThe mean time period of second s pendulum is 2 00s and mean absolute error in the time period is 0 05s To express maximum estimate of error the time period should be written as 2 00 0 01 s 2 00 0 025 s 2 00 0 05 s CORRECT ANSWER
![In the figure shown strings and pulleys are ideal What is the acceleration of block A and block B if system is released from rest take g 10 m s 2kg A 0 4 A a 28 m s C a 4m s B 3kg B a 2m s D ag 14 1m s](https://media.kunduz.com/media/sug-question-candidate/20210922114923630844-3595151.jpg?w=256)
Physics
Basic PhysicsIn the figure shown strings and pulleys are ideal What is the acceleration of block A and block B if system is released from rest take g 10 m s 2kg A 0 4 A a 28 m s C a 4m s B 3kg B a 2m s D ag 14 1m s
![4 A B 3 AB 2 B2 The diagonals of a parallelogram represented by vectors p si 4j 3k i 3i 2 k Then the area of parallelogram is 1 171 unit 2 72 unit 4 72 unit 3 171 unit As shown in figure ABCDEF is a regu](https://media.kunduz.com/media/sug-question-candidate/20210629125757752079-2662149.jpg?w=256)
Physics
Basic Physics4 A B 3 AB 2 B2 The diagonals of a parallelogram represented by vectors p si 4j 3k i 3i 2 k Then the area of parallelogram is 1 171 unit 2 72 unit 4 72 unit 3 171 unit As shown in figure ABCDEF is a regu
![A point charge q exerts an electric force on a second point charge q If third charge q3 is brought 93 near the electric force of q exerted on 92 1 Decreases 2 Increases 3 Remains unchanged 4 Increases if q3 is of same sign as q and 93 pocos if a is of opposite sign](https://media.kunduz.com/media/sug-question-candidate/20210629130455514918-2145208.jpg?w=256)
Physics
Basic PhysicsA point charge q exerts an electric force on a second point charge q If third charge q3 is brought 93 near the electric force of q exerted on 92 1 Decreases 2 Increases 3 Remains unchanged 4 Increases if q3 is of same sign as q and 93 pocos if a is of opposite sign
![The terminals of battery of emf 12 V and internal resistance 1 Q are connected to a circular coil of resistance 16 Q at two points distance a quarter of circumference of coil The current flowing in smaller arc of circle is 2 4 A 2 25 A X 0 75 A](https://media.kunduz.com/media/sug-question-candidate/20210802235034464971-2069617.jpg?w=256)
Physics
Basic PhysicsThe terminals of battery of emf 12 V and internal resistance 1 Q are connected to a circular coil of resistance 16 Q at two points distance a quarter of circumference of coil The current flowing in smaller arc of circle is 2 4 A 2 25 A X 0 75 A
![3 A body A of mass m 0 1 kg has an initial velocity of 31 ms It collides elastically with another body B of the same mass which has an initial velocity of 5jms After collision A moves with a velocity v 4 i j The energy of B after collision is written as 10 The value of x is](https://media.kunduz.com/media/sug-question-candidate/20210629113831256598-3473012.jpg?w=256)
Physics
Basic Physics3 A body A of mass m 0 1 kg has an initial velocity of 31 ms It collides elastically with another body B of the same mass which has an initial velocity of 5jms After collision A moves with a velocity v 4 i j The energy of B after collision is written as 10 The value of x is
![35 ADI A N N B 3N C 0 5N D 1 5N A and B are two vectors What is the component of A B on X axis B 60P 30 A A cos30 B cos60 B A cos30 B sin60 C A sin 30 B cos60 D A sin30 B sin60 X 35 A C A 12 A B C C](https://media.kunduz.com/media/sug-question-candidate/20210629124323450028-2662149.jpg?w=256)
Physics
Basic Physics35 ADI A N N B 3N C 0 5N D 1 5N A and B are two vectors What is the component of A B on X axis B 60P 30 A A cos30 B cos60 B A cos30 B sin60 C A sin 30 B cos60 D A sin30 B sin60 X 35 A C A 12 A B C C
![2 Two vectors and are at an angle of 60 with each other Their resultant makes an angle of 45 with a If b 2 units then is A 3 C 3 1 B 3 1 D 3 2 32 Gatal ada a 45 b 2 44 4 A 3 C 3 1 60 you and i B 3 1 D 3 2](https://media.kunduz.com/media/sug-question-candidate/20210629112954689725-2662149.jpg?w=256)
Physics
Basic Physics2 Two vectors and are at an angle of 60 with each other Their resultant makes an angle of 45 with a If b 2 units then is A 3 C 3 1 B 3 1 D 3 2 32 Gatal ada a 45 b 2 44 4 A 3 C 3 1 60 you and i B 3 1 D 3 2
![of 45 with a If b 2 units then is A 3 C 3 1 If P Q A 0 B 3 1 D 3 2 PQ then angle between P and Q is B 180 C 90 D 45 33 b 244 A 3 C 3 1 PQPQP A 0 B 180 B 3 1 D 3 2 Q C 90 yal D 45](https://media.kunduz.com/media/sug-question-candidate/20210629113009380269-2662149.jpg?w=256)
Physics
Basic Physicsof 45 with a If b 2 units then is A 3 C 3 1 If P Q A 0 B 3 1 D 3 2 PQ then angle between P and Q is B 180 C 90 D 45 33 b 244 A 3 C 3 1 PQPQP A 0 B 180 B 3 1 D 3 2 Q C 90 yal D 45
![B A 5i 9j k C 3k D si 21 4k If a vector p make angles a B and y respectively with the X Y Z axis then sin a sin sin y A 1 B 2 C 3 D 0 If and are non collinear unit vectors and 27 B D si 2 4k A si 9j k C 3k asa P X Y Z Bandy you ou ci sin a sin B sin y you A I B 2 C 3 D 0](https://media.kunduz.com/media/sug-question-candidate/20210629112832258345-2662149.jpg?w=256)
Physics
Basic PhysicsB A 5i 9j k C 3k D si 21 4k If a vector p make angles a B and y respectively with the X Y Z axis then sin a sin sin y A 1 B 2 C 3 D 0 If and are non collinear unit vectors and 27 B D si 2 4k A si 9j k C 3k asa P X Y Z Bandy you ou ci sin a sin B sin y you A I B 2 C 3 D 0
![Q No 24 According to well accepted practice slip gauges which have been handled for a few minutes should be left for sometime The reason for this could be A The moisture transferred from hand would evaporate B The structure of gauges if disturbed would stabilize C Gauges attain the room temperature again D with continuous use gauges may wear quickly](https://media.kunduz.com/media/sug-question-candidate/20210922125421273531-3397172.jpg?w=256)
Physics
Basic PhysicsQ No 24 According to well accepted practice slip gauges which have been handled for a few minutes should be left for sometime The reason for this could be A The moisture transferred from hand would evaporate B The structure of gauges if disturbed would stabilize C Gauges attain the room temperature again D with continuous use gauges may wear quickly
![PodS 22 The direction cosines of a vector i j 2k are 1 1 2 1 11 3 5 57 2 4 1 1 1 2 2 2 1 1 1 R 22 1 1 2k alal aucus cosine real 1 1 1 2 2 2 3 1 1 1 1 1 2 1 1](https://media.kunduz.com/media/sug-question-candidate/20210629112725748665-2662149.jpg?w=256)
Physics
Basic PhysicsPodS 22 The direction cosines of a vector i j 2k are 1 1 2 1 11 3 5 57 2 4 1 1 1 2 2 2 1 1 1 R 22 1 1 2k alal aucus cosine real 1 1 1 2 2 2 3 1 1 1 1 1 2 1 1
![Four resistances of 1502 1202 402 and 1002 respectively in cyclic order to form Wheatstone s network The resistance that is to be connected in parallel with the resistance of 1002 to balance the network is Q](https://media.kunduz.com/media/sug-question-candidate/20210629113454311666-3473012.jpg?w=256)
Physics
Basic PhysicsFour resistances of 1502 1202 402 and 1002 respectively in cyclic order to form Wheatstone s network The resistance that is to be connected in parallel with the resistance of 1002 to balance the network is Q
![21 ADI two original forces is A 0 B 60 C 90 D 120 Find the component of 7 in the direction of a r a a A B 7 f A 0 21 afar A B C D r a a F f B 60 C 90 lui us D 120 3 3](https://media.kunduz.com/media/sug-question-candidate/20210629112649912076-2662149.jpg?w=256)
Physics
Basic Physics21 ADI two original forces is A 0 B 60 C 90 D 120 Find the component of 7 in the direction of a r a a A B 7 f A 0 21 afar A B C D r a a F f B 60 C 90 lui us D 120 3 3
![Q No 27 The vernier reading should not be taken at its face value before an actual check has been taken for A Zero error B Its calibration C Flatness of measuring jaws D Temperature equalization](https://media.kunduz.com/media/sug-question-candidate/20210922125516273294-3397172.jpg?w=256)
Physics
Basic PhysicsQ No 27 The vernier reading should not be taken at its face value before an actual check has been taken for A Zero error B Its calibration C Flatness of measuring jaws D Temperature equalization
![C 0 3 D 0 6 The angle subtended by the vector A 41 31 12k with the x axis is A sin C cos 13 B sin D cos What is the angle between vector and the 17 A 41 31 12k f ye A sin C cos 1 B sin D cos 1](https://media.kunduz.com/media/sug-question-candidate/20210629112536594066-2662149.jpg?w=256)
Physics
Basic PhysicsC 0 3 D 0 6 The angle subtended by the vector A 41 31 12k with the x axis is A sin C cos 13 B sin D cos What is the angle between vector and the 17 A 41 31 12k f ye A sin C cos 1 B sin D cos 1